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(No Model.) 2 Sheets$heet 1.

S A. J AGKSON.

v GHURN No-. 295,766. Patented Mar. 25, 1884.

WITNESSES UNITED STATES PATENT OFFICE.

ADOLPHUS JACKSON, or FREDERICK, MARYLAND.

CHURN.

SPECIFICATION forming part of Letters Patent No. 295,766, dated March 25, 1884. Application filed October 10, 1883. (No model.)

To all whom it may concern Be it known that I, ADOLPHUS JACKSON, a citizen of the United States, residing at Frederick, in the county of Frederick and State of Maryland, have invented certain new and useful Improvements in Churns, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain improvements in churns and it has for its objects to provide certain mechanism whereby the milk or cream maybe thoroughly agitated,'so as to rapidly separate the butter therefrom, as more fullyhereinafter specified. These obj ects I attain by the means illustrated in the accompanying drawings, in which Figure 1 represents a perspective view of myimproved churn; Fig. 2, a vertical sectional view, and Fig. 3 a horizontal sectional view, of the same.

The letter A indicates the churn body or vessel, which is in the shape of a truncated cone, and mounted upon legs B. The inside of the said vessel is provided with a series of angular wings, O, which are secured to the walls of the vessel, leaving a circular space at the center, into which fits a foraminous cylinder constructed of a head, a, an annular ring,

,b, at the bottom, a series of vertical ribs, 0,

and a wire-gauze covering, d, a portion of which is left open, as indicated by the letter 6, for the escape of the butter. The head a is provided with an opening, 6, at its center, through which extends avertical shaft, D, the lower end of which isstepped in a seat in a metallic disk, E, secured-to the bottom of the churn-vessel at the center. "The said shaft is provided with longitudinal channels F, leading from the top to the bottom, through which air is taken into the milk or cream during the operation of the churn. The upper portion of the shaft is squared, as indicated by the letter G, and upon said squared portion is fitted a detachable beveled cog-wheel, H, with which is adapted to inter-mesh a larger beveled'cogwheel, I, which is mounted upon a horizontal shaft, K, journaled in bearings L, at opposite blades P, inclined at an angle of forty-five degrees to the shaft. The horizontal shaft is detachably confined in its bearings by means of hooks B, so that the working parts of the churn may be released and removed when required. The horizontal shaft is provided with a winch or crank, S, by means of which it may be put in motion.

The operation of my invention will be read ily understood in connection with the above description, and is as follows: Upon rotating the vertical shaft the dasher-bladesand propeller-wheel throw the milk or cream to the sides of the churn centrifugally, the dasher agitating it. The propeller-blades also cause a partial vacuum in the bottom of the churn as they force the milk or cream upward, ore ating an air-draft through the channels in the vertical shaft into and through the milk or cream, the air acting chemically as well as mechanically upon the milk or cream, driving the globules against the wire-gauze and breaking the same, to set the butter free.

Having thusdescribed my invention, what I claim, and desire to secure by Letters Patent, 1s-

The combination, with the churn-vessel having vertical wings on the inside and a detachable foraminous cylinder located therein, of

the vertical shaft provided with perforated dasher-blades, and a propeller-screw near the bottom, with suitable mechanism whereby said shaft may be rotated, substantially as and for the purposes specified.

In testimony whereof I affix my signature in presence of two witnesses.

ADOLPHUS JACKSON.

Witnesses:

J. J. MoOARTHY, O. M. ALEXANDER. 

